Bolt-head trimmer



March 5, 1929. A, KIN Y 1,704,541

BOLT HEAD TRIMMER Filed Dec. ,12. 1921 end to receive the shankof a boltand to receive a bolt ejecting spindle, said plunger being adapted tocarry the bolt into head trimming engagement with the die, a spindle.movab'le intosaid apertureto eject a bolt ,shank therefrom, and meanssupported on relative to the die having an aperture in its the shank endof a bolt blank and to Carr end toreceive the shank of a bolt and toreceive a bolt e ecting spindle, a splndle movable into said aperture toreject a bolt shank therefrom, and a spring supported on said plungerand adapted to be compressed during the forward movement of the plungerin a trimming operation by the entrance of the shank of the bolt intothe aperture in the plunger, and to expand at the completion of thetrimming operation and to e ect the shankot the bolt from the aperturein the plunger;

3. In a bolt head trimmer, in combination, a head trimming die, aplunger movable relative to the die having an aperture in its end toreceive the shank eta bolt and to receive a bolt ejecting spindle, achamber in rear of said" aperture, said spindle. being movable into saidaperture to eject a bolt shank therefrom, a spring'in said chamber andnormally holding said spindle at its forward limit of travel, the springbeing adapted to be compressed by theentranee or the shank of a boltinto the. aperture Qfthe plunger, during forward movement of theplunger, and to expand at the completion of the trimming operation andto eject the shank of the bolt from the aperture in the plunger.

4. Ina

belt lijead tri 'uner, in combination,

a head trimming die, a, hollow plunger movablenrelative to the dieadapted; to'receive the blank. into head trimming engagein withthe die,an. ejector contained in s plunger, and means engaging said eject-oradapted 'to be energized by the working stroke of said plunger-andzultomatieally rendered active immediately after the trim mingoperationto cause said ejector to move axially whereby the bolt blank 1se ected r Q- spindle movable nto said aperture a bolt shank therefrom,means for elleoting' from the plungerat the endof its Working stroke.

5. In a bolt head trimmer, in combination,

ardie, a plunger adapted to receive the shank end of a bolt blankandpress same through the die during its working stroke, and meansenergized by the plunger during its Working stroke andrendered activeimmediately upon completion of such stroke to eject the bolt blank fromthe plunger.

6. In a bolt head trimmer, in combination, a die, a plunger adapted toreceive the shank end of a bolt blank and press same through the dieduring its Working stroke, and means energized by the plunger during.its Working stroke and rendered active to eject the bolt blank from theplunger upon completion of the trimming operation independent of themovement 01 said plunger.

1. ill a bolt head trimmer,'in combination,

a die, a plunger adapted to receivethe shank end or a bolt blank, meanselfecting relative movement between'the plunger and the die toward andfrom'each other, resilient means carried by the plunger adapted to beengaged by the shank end of a boltblank to store energy during theearlier part of the" relative approaching n'iovement ot' the plunger andthe die, means whereby the plunger engages a portion of the head of thebolt blank during'the' latter ;part of said approachingmovement of theplunger and die whereby the bolt blankis'held in workengagement withthedie until the'co mpletion of the trimming operation, where upon saidresilient means acts to expend the,

stored energy to eject the bolt from the plunger. I 1

8. In a bolt head trimmer, in combination, a head trimming die, aplungerhaving an aperture in its end to receive the bolt, and to receivea boltejecti' to eject relative movement betiveenrthe plunger and the die, andmeans supported on the plunger and adapted to store energy thereinduring en iproaching relative movementbetween the plunger and the die ina trimming operation and to expend such energy when the movement of theblank through the die is completed, to move thespindle forwardly and toeject the boil 'lroin'the aperture inthe plunger.v j

In t stimony whereoi' I hereunto affix my} signature. I Y e JAMES ai'uunr. it

